Add exclusive props handling feature flag (#54499)

Summary:
Pull Request resolved: #54499

This feature flag disables the Props 1.5 merging for props instaces that will use Props 2.0.

## Context about this change
* When Props 1.5 is enabled, cloning props would always trigger the merge of raw props so that the result of multiple commits could be combined for a single mount.
* Props 2.0 is enabled on core components and codegen components
* When a component has support for Props 2.0, there is no need to apply the Props 1.5 merging when cloning props. Props 2.0 uses the C++ Props instance to keep track of the state of the shadow node props and diff it with the last mount.

## How is the conditional merging implemented
* When a concrete shadow node needs to have the props cloned, we use the Props 2.0 implementation target to check that it matches the shadow node's component
  * If it matches, the props support diffing for all properties used by the component
    * Props 2.0 can be used to generate the mount transaction
  * If it doesn't match, the props were extended and additional props might have been defined which are not supported by the Props 2.0 diffing implementation
    * In this case we need to fallback to Props 1.5

Changelog: [Internal]

Reviewed By: javache

Differential Revision: D86732107

fbshipit-source-id: 7bb6f01508c564a292908ab458d499f619b9fd4b

Author: Nick Lefever

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlags.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<35b171a16e75e3bb047139c0b8084f04>>
+ * @generated SignedSource<<9cb554e599417e707c0953baa6adb0c2>>
  */
 
 /**
@@ -168,6 +168,12 @@ public object ReactNativeFeatureFlags {
   @JvmStatic
   public fun enableEagerRootViewAttachment(): Boolean = accessor.enableEagerRootViewAttachment()
 
+  /**
+   * When enabled, Android will disable Props 1.5 raw value merging when Props 2.0 is available.
+   */
+  @JvmStatic
+  public fun enableExclusivePropsUpdateAndroid(): Boolean = accessor.enableExclusivePropsUpdateAndroid()
+
   /**
    * This feature flag enables logs for Fabric.
    */

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsCxxAccessor.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<2f0412d405655c1dafc7d63a8dcb0da1>>
+ * @generated SignedSource<<24a3e681a86bce628917f5e20ce1b1eb>>
  */
 
 /**
@@ -43,6 +43,7 @@ internal class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAcces
   private var enableDoubleMeasurementFixAndroidCache: Boolean? = null
   private var enableEagerMainQueueModulesOnIOSCache: Boolean? = null
   private var enableEagerRootViewAttachmentCache: Boolean? = null
+  private var enableExclusivePropsUpdateAndroidCache: Boolean? = null
   private var enableFabricLogsCache: Boolean? = null
   private var enableFabricRendererCache: Boolean? = null
   private var enableFontScaleChangesUpdatingLayoutCache: Boolean? = null
@@ -314,6 +315,15 @@ internal class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAcces
     return cached
   }
 
+  override fun enableExclusivePropsUpdateAndroid(): Boolean {
+    var cached = enableExclusivePropsUpdateAndroidCache
+    if (cached == null) {
+      cached = ReactNativeFeatureFlagsCxxInterop.enableExclusivePropsUpdateAndroid()
+      enableExclusivePropsUpdateAndroidCache = cached
+    }
+    return cached
+  }
+
   override fun enableFabricLogs(): Boolean {
     var cached = enableFabricLogsCache
     if (cached == null) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsCxxInterop.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<482e0650e142e65efdfbc394c041690d>>
+ * @generated SignedSource<<f57b2ecf22eabb7f207b86c472059084>>
  */
 
 /**
@@ -74,6 +74,8 @@ public object ReactNativeFeatureFlagsCxxInterop {
 
   @DoNotStrip @JvmStatic public external fun enableEagerRootViewAttachment(): Boolean
 
+  @DoNotStrip @JvmStatic public external fun enableExclusivePropsUpdateAndroid(): Boolean
+
   @DoNotStrip @JvmStatic public external fun enableFabricLogs(): Boolean
 
   @DoNotStrip @JvmStatic public external fun enableFabricRenderer(): Boolean

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsDefaults.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<8c75d178f645340779aed6c3e0b3f016>>
+ * @generated SignedSource<<47b33d1a21af24f369e52d3b8f226d73>>
  */
 
 /**
@@ -69,6 +69,8 @@ public open class ReactNativeFeatureFlagsDefaults : ReactNativeFeatureFlagsProvi
 
   override fun enableEagerRootViewAttachment(): Boolean = false
 
+  override fun enableExclusivePropsUpdateAndroid(): Boolean = false
+
   override fun enableFabricLogs(): Boolean = false
 
   override fun enableFabricRenderer(): Boolean = false

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsLocalAccessor.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<6217268b4398764dfd0da461d93bb55a>>
+ * @generated SignedSource<<a9c53954bffc14f69cf1e7c4707cb37a>>
  */
 
 /**
@@ -47,6 +47,7 @@ internal class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcc
   private var enableDoubleMeasurementFixAndroidCache: Boolean? = null
   private var enableEagerMainQueueModulesOnIOSCache: Boolean? = null
   private var enableEagerRootViewAttachmentCache: Boolean? = null
+  private var enableExclusivePropsUpdateAndroidCache: Boolean? = null
   private var enableFabricLogsCache: Boolean? = null
   private var enableFabricRendererCache: Boolean? = null
   private var enableFontScaleChangesUpdatingLayoutCache: Boolean? = null
@@ -341,6 +342,16 @@ internal class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcc
     return cached
   }
 
+  override fun enableExclusivePropsUpdateAndroid(): Boolean {
+    var cached = enableExclusivePropsUpdateAndroidCache
+    if (cached == null) {
+      cached = currentProvider.enableExclusivePropsUpdateAndroid()
+      accessedFeatureFlags.add("enableExclusivePropsUpdateAndroid")
+      enableExclusivePropsUpdateAndroidCache = cached
+    }
+    return cached
+  }
+
   override fun enableFabricLogs(): Boolean {
     var cached = enableFabricLogsCache
     if (cached == null) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsProvider.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<aea4f9836bcb46f125738d92fc03664b>>
+ * @generated SignedSource<<da5879ddbaea7cd51f828e284bc0e913>>
  */
 
 /**
@@ -69,6 +69,8 @@ public interface ReactNativeFeatureFlagsProvider {
 
   @DoNotStrip public fun enableEagerRootViewAttachment(): Boolean
 
+  @DoNotStrip public fun enableExclusivePropsUpdateAndroid(): Boolean
+
   @DoNotStrip public fun enableFabricLogs(): Boolean
 
   @DoNotStrip public fun enableFabricRenderer(): Boolean

packages/react-native/ReactAndroid/src/main/jni/react/featureflags/JReactNativeFeatureFlagsCxxInterop.cpp

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<52f8dbc9c7975a1eb83bcb4bd4973ace>>
+ * @generated SignedSource<<1a3267843d7400974e8686c83d359c7b>>
  */
 
 /**
@@ -177,6 +177,12 @@ class ReactNativeFeatureFlagsJavaProvider
     return method(javaProvider_);
   }
 
+  bool enableExclusivePropsUpdateAndroid() override {
+    static const auto method =
+        getReactNativeFeatureFlagsProviderJavaClass()->getMethod<jboolean()>("enableExclusivePropsUpdateAndroid");
+    return method(javaProvider_);
+  }
+
   bool enableFabricLogs() override {
     static const auto method =
         getReactNativeFeatureFlagsProviderJavaClass()->getMethod<jboolean()>("enableFabricLogs");
@@ -674,6 +680,11 @@ bool JReactNativeFeatureFlagsCxxInterop::enableEagerRootViewAttachment(
   return ReactNativeFeatureFlags::enableEagerRootViewAttachment();
 }
 
+bool JReactNativeFeatureFlagsCxxInterop::enableExclusivePropsUpdateAndroid(
+    facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop> /*unused*/) {
+  return ReactNativeFeatureFlags::enableExclusivePropsUpdateAndroid();
+}
+
 bool JReactNativeFeatureFlagsCxxInterop::enableFabricLogs(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop> /*unused*/) {
   return ReactNativeFeatureFlags::enableFabricLogs();
@@ -1089,6 +1100,9 @@ void JReactNativeFeatureFlagsCxxInterop::registerNatives() {
       makeNativeMethod(
         "enableEagerRootViewAttachment",
         JReactNativeFeatureFlagsCxxInterop::enableEagerRootViewAttachment),
+      makeNativeMethod(
+        "enableExclusivePropsUpdateAndroid",
+        JReactNativeFeatureFlagsCxxInterop::enableExclusivePropsUpdateAndroid),
       makeNativeMethod(
         "enableFabricLogs",
         JReactNativeFeatureFlagsCxxInterop::enableFabricLogs),

packages/react-native/ReactAndroid/src/main/jni/react/featureflags/JReactNativeFeatureFlagsCxxInterop.h

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<cf83d0062141cba8907e099b01a3809f>>
+ * @generated SignedSource<<9769e993b3481e991ef79406734b6e28>>
  */
 
 /**
@@ -99,6 +99,9 @@ class JReactNativeFeatureFlagsCxxInterop
   static bool enableEagerRootViewAttachment(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
 
+  static bool enableExclusivePropsUpdateAndroid(
+    facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
+
   static bool enableFabricLogs(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
 

packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlags.cpp

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<e938b14c610089a3ea008b85c54f2b1b>>
+ * @generated SignedSource<<316d877ef7aac59c840cb2b6e659891d>>
  */
 
 /**
@@ -118,6 +118,10 @@ bool ReactNativeFeatureFlags::enableEagerRootViewAttachment() {
   return getAccessor().enableEagerRootViewAttachment();
 }
 
+bool ReactNativeFeatureFlags::enableExclusivePropsUpdateAndroid() {
+  return getAccessor().enableExclusivePropsUpdateAndroid();
+}
+
 bool ReactNativeFeatureFlags::enableFabricLogs() {
   return getAccessor().enableFabricLogs();
 }

packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlags.h

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<bebf3698e5e3e3899826da1ea2000171>>
+ * @generated SignedSource<<2ff839b736c1c74b3dccefadb6e278b9>>
  */
 
 /**
@@ -154,6 +154,11 @@ class ReactNativeFeatureFlags {
    */
   RN_EXPORT static bool enableEagerRootViewAttachment();
 
+  /**
+   * When enabled, Android will disable Props 1.5 raw value merging when Props 2.0 is available.
+   */
+  RN_EXPORT static bool enableExclusivePropsUpdateAndroid();
+
   /**
    * This feature flag enables logs for Fabric.
    */